Adaptive protocols for information dissemination in wireless sensor networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Directed diffusion: a scalable and robust communication paradigm for sensor networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Electronic Warfare in the Information Age
Electronic Warfare in the Information Age
SPINS: security protocols for sensor networks
Wireless Networks
Proceedings of the 10th international conference on Architectural support for programming languages and operating systems
Denial of Service in Sensor Networks
Computer
Collision Avoidance and Resolution Multiple Access with Transmission Groups
INFOCOM '97 Proceedings of the INFOCOM '97. Sixteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Driving the Information Revolution
JAM: A Jammed-Area Mapping Service for Sensor Networks
RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
Understanding packet delivery performance in dense wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Taming the underlying challenges of reliable multihop routing in sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Timing-sync protocol for sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
CODA: congestion detection and avoidance in sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Low-power DoS attacks in data wireless LANs and countermeasures
ACM SIGMOBILE Mobile Computing and Communications Review
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
DOMINO: a system to detect greedy behavior in IEEE 802.11 hotspots
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Centralized channel assignment and routing algorithms for multi-channel wireless mesh networks
ACM SIGMOBILE Mobile Computing and Communications Review
Channel surfing and spatial retreats: defenses against wireless denial of service
Proceedings of the 3rd ACM workshop on Wireless security
Versatile low power media access for wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
TAG: a Tiny AGgregation service for Ad-Hoc sensor networks
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
The feasibility of launching and detecting jamming attacks in wireless networks
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Wormhole-Based Antijamming Techniques in Sensor Networks
IEEE Transactions on Mobile Computing
802.11 denial-of-service attacks: real vulnerabilities and practical solutions
SSYM'03 Proceedings of the 12th conference on USENIX Security Symposium - Volume 12
Energy-efficient detection of intermittent interference in wireless sensor networks
International Journal of Sensor Networks
Channel selection in spectrum agile and cognitive MAC protocols for wireless sensor networks
Proceedings of the 8th ACM international workshop on Mobility management and wireless access
On the capacity of rate-adaptive packetized wireless communication links under jamming
Proceedings of the fifth ACM conference on Security and Privacy in Wireless and Mobile Networks
Interference mitigation in WSN by means of directional antennas and duty cycle control
Wireless Communications & Mobile Computing
Hi-index | 0.00 |
Radio interference, whether intentional or otherwise, represents a serious threat to assuring the availability of sensor network services. As such, techniques that enhance the reliability of sensor communications in the presence of radio interference are critical. In this article, we propose to cope with this threat through a technique called channel surfing, whereby the sensor nodes in the network adapt their channel assignments to restore network connectivity in the presence of interference. We explore two different approaches to channel surfing: coordinated channel switching, in which the entire sensor network adjusts its channel; and spectral multiplexing, in which nodes in a jammed region switch channels and nodes on the boundary of a jammed region act as radio relays between different spectral zones. For coordinated channel switching, we examine an autonomous strategy where each node detects the loss of its neighbors in order to initiate channel switching. To cope with latency issues in the autonomous strategy, we propose a broadcast-assisted channel switching strategy to more rapidly coordinate channel switching. For spectral multiplexing, we have devised both synchronous and asynchronous strategies to facilitate the scheduling of nodes in order to improve network fidelity when sensor nodes operate on multiple channels. In designing these algorithms, we have taken a system-oriented approach that has focused on exploring actual implementation issues under realistic network settings. We have implemented these proposed methods on a testbed of 30 Mica2 sensor nodes, and the experimental results show that channel surfing, in its various forms, is an effective technique for repairing network connectivity in the presence of radio interference, while not introducing significant performance-overhead.